Description Specifications Literature Description WIKA type 111.10SP bourdon tube pressure gauges are used for fire sprinkler systems and are suitable for all media that will not obstruct the pressure system or attack copper alloy parts.Special Features: UL-listed (UL-393), United States and Canada Factory mutual approved Reliable and economical State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Dial Size:4"Pressure Range:300 psiPressure Connection:1/4" NPTTube & Socket:Copper alloyMount:Lower mountAccuracy:±3/2/3% Literature & Docs Product Specifications Accessories